Gravitrax Expansion - Building Surprise Box It’s a different game board

It’s a different game board every time you play

and crystallization

The smocked satin back allows for ultimate size flexibility

they are ergonomic for everyone

storage bag

Gravitrax Expansion - Building Surprise Box It’s a different game boardTake your track to new heights with the GraviTrax Building Expansion set! The Building Expansion offers over 25 additional elements to expand your track vertically. Youll increase the action when increasing the height of your run. Experiment with the combination of height tiles, base plates, freefalls, switches and even another level. See how high you can build your track before getting the marbles to the finish. GraviTrax Starter Set required. Ages 8